I don't see why adult kids should be compelled to support their parent for president. They are thinking people, and can form their own opinions. Furthermore I don't think it necessarily reflects poorly on their parent if they don't. Kids in their 20s have different priorities and views of life than older people. When I was 20 I held a lot of beliefs I have since recanted (I am now 49), and have learned a lot, and have a different perspective. (For one thing now I have kids of my own.) It may be that Guiliani appeals to older voters?

"The reason it is a "bad idea" is that it makes the kids look small and petty -- especially since they're perfectly willing to take Rudy's money"

I guess when dad calls a press conference to announce he's divorcing your mother so he can marry the bimbo he's been philandering with, without telling you first, it might tend to get a kid a little upset.

And how do you know how much of "Rudy's money" these kids are taking, or what they're doing with it?